正交异性双材料界面裂纹尖端应力场  

Study of Stress Field Near Interface Crack Tip of Double Dissimilar Orthotropic Composite Materials

作　　者：李俊林[1] 张少琴[1] 杨维阳[1] 郭兴明 

机构地区：[1]太原科技大学应用科学学院,太原030024

出　　处：《应用数学和力学》2008年第8期947-953,共7页Applied Mathematics and Mechanics

基　　金：山西省自然科学基金资助项目(2007011008)

摘　　要：通过构造新的应力函数,利用复合材料断裂复变方法,对正交异性双材料界面裂纹进行了研究.在特征方程组的判别式都大于零的情形下,推出了Ⅰ型界面裂纹尖端的应力场、位移场的理论公式,其结果没有振荡奇异性及裂纹面没有相互嵌入现象。A study of double dissimilar orthotropic composite materials interracial crack was made by constructing new stress functions and employing the method of composite material complex. In the case that the characteristic equations＇ discriminants are all more than zero, the theoretical formula of the stress field and the displacement field near the mode I interface crack tip, without oscination and inter-embedding between the interfaces of the crack were derived.

关 键 词：正交异性 界面裂纹 裂纹尖端 应力场 

分 类 号：O346.1[理学—固体力学] O174.5[理学—力学]